July weather forecast
Guam, USA

July in Guam is characterized by the heart of the wet season, presenting a fusion of warmth and consistent rainfall. Temperatures during this month are typically situated between 81°F (27.2°C) and 90°F (32.2°C), representing some of the year's hottest conditions. The consistent warmth combined with significant rainfall marks July as one of the most humid months on the Guam calendar.

The entire expanse of Guam experiences these tropical conditions. The island, already immersed in the wet season initiated by June, now sees its landscapes drenched in frequent showers, intensifying its lush green aura. The marked departure from the drier conditions of earlier months is palpable, as July epitomizes Guam's tropical rainforest climate.

Rain showers become even more frequent in July compared to June, with precipitation levels peaking for the year. However, the steadfast northeast trade winds, ranging from 10mph (16.1km/h) to 20mph (32.2km/h), continue to moderate the island's climate, offering periodic relief from the consistent humidity and rain.

The warm oceanic waters around Guam remain inviting, but the higher chances of rain and potential storms necessitate extra caution for those engaging in marine activities. As July ends and August beckons, the island readies itself for even more rain, with August historically being among the wettest periods in Guam.

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• Hagåtña - July »
  Temperatures in Hagåtña reach their maximum during July and August, recording an average high-temperature of 84.7°F (29.3°C). In Hagåtña, during July, the rain falls for 28.9 days and regularly aggregates up to 7.52" (191mm) of precipitation.
• Dededo - July »
  In Dededo, Guam, in July, during 28.9 rainfall days, 7.52" (191mm) of precipitation is typically accumulated. In July, the average heat index, which represents the influence of relative humidity on air temperature, is evaluated at 95°F (35°C).
• Santa Rita - July »
  In Santa Rita in July, during 28.9 rainfall days, 7.52" (191mm) of precipitation is typically accumulated. In Santa Rita in July, the average water temperature is 85.1°F (29.5°C).
• Agat - July »
  The month of July sees Agat deeply entrenched in the summer season with the highest rainfall reaching 7.52" (191mm), marking it as the start of the city's wet period. Agat's average highest temperatures are recorded in July and August, reaching a high of 84.7°F (29.3°C).
• Piti - July »
  The months of July and August are noted for their peak temperatures in Piti, with an average high-temperature of 84.7°F (29.3°C). In Piti in July, the average water temperature is 85.1°F (29.5°C).
• Talofofo - July »
  In Talofofo, during July, the rain falls for 28.9 days and regularly aggregates up to 7.52" (191mm) of precipitation. The months of July and August see the peak of Talofofo's temperatures, averaging a high of 84.7°F (29.3°C).
• Inarajan - July »
  July continues the trend of the rainy season, with Inarajan, Guam experiencing the highest rainfall of the year at 7.52" (191mm). The months of July and August see the peak of Inarajan's temperatures, averaging a high of 84.7°F (29.3°C).
• Merizo - July »
  In Merizo, Guam, in July, the average water temperature is 85.1°F (29.5°C). In Merizo during July, the rain falls for 28.9 days and regularly aggregates up to 7.52" (191mm) of precipitation.
• Umatac - July »
  July's weather steadily escalates in intensity, with Umatac, Guam experiencing a peak rainfall of 7.52" (191mm), significantly exceeding June's precipitation. Temperatures in Umatac reach their maximum during July and August, recording an average high-temperature of 84.7°F (29.3°C).
• Guam National Wildlife Refuge - July »
  On the last day of July, in Guam National Wildlife Refuge, sunrise is at 6:04 am and sunset at 6:48 pm ChST. When are sunrise and sunset in July in Guam National Wildlife Refuge?